docs: def read_pid_stat(pid):
      """
      Mocks read_pid_stat as this is a Linux-specific operation.
      """
      return {
          "utime": random.randint(0, 999999999),
          "stime": random.randint(0, 999999999),
          "cutime": random.randint(0, 999999999),
          "cstime": random.randint(0, 999999999),
      }